Home / 117,621.23-162,318.02-63,906.21

Finding the Fourth Proportional to 117,621.23, 162,318.02 and 63,906.21

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Solution

The fourth proportional to 117,621.23, 162,318.02 and 63,906.21 is: 88,190.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,621.23 : 162,318.02 = 63,906.21 : x
  2. Step 2: Convert to fraction form
    117,621.23/162,318.02 = 63,906.21/x
  3. Step 3: Cross multiply
    117,621.23x = 162,318.02 × 63,906.21
  4. Step 4: Simplify right side
    117,621.23x = 10,373,129,153.37
  5. Step 5: Solve for x
    x = 10,373,129,153.37/117,621.23
  6. Step 6: Final answer
    x = 88,190.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.